Electrically-controlled elevator.



T. G; MASON.

ELECTRICALL'Y CONTROLLED ELEVATOR. 7 APPLICATION PILEDDEG. L0, 1910,

1,091,003.. Y Y Patented Max:241, 19M

WW lzo elzz'on' I T123925 T6, 331' T131333, 615.113.1313,

ELIEQERIGAILIJY-(CONTROLLED ELEVA'IQE,

Specification 01" Le'tters'Petent.

Application filed Bscemnci in, one.

ZPutented Mai. 2 1, 11931 1, Sci-1.211%. 5596, 571.

ject of the invention is to devise an electric control which will dispense with e car op orator and. enable anyone desiring to use the our to bring it to any dcsired floor, and by which it may bc located and brought to any desired floor merely by the operation of a designated push button by which the user has absolute and. individual control for the time being; of the car until he reaches the floor, and by which sufiicient time allowed to open the door to enter.

.13: consists of a series of push buttons one located at each floor, a. series of push buttons in the can, contacts between the car gate and frame, u circuit breaking switch, n time closure c tintrolling the closing of the switch, it floor selecting device :1. main w're leading from the our operating mechanism through the push buttons of the car, through the circuitbi-eahing' switch, getecontacts, each of the l'looi' push buttons, thi-ough the time controlling device to the selecting device from which lead Wires for the .up and down circuits as hereinafter more particulurly explained by the following specification.

The drawing represents s View of my dcvice partially in section and partially in diagram.

A, B, C and D are the doors provided with gates A", 1'1 A? and 11*. The gates are provided with contact plates 1, f2, and 1. The frame of each gate provided With @011 tucts 1, 1* which are bridged by the contact plates 1, 2, 3 and. l of the gates.

B is the our proi/ided with :1, series of push buttons B, B B and B and a circuit opening button B E E E and E are the door push buttons.

F is u knife switch. switch is secured to a rocking arbor F journnled in suitable hearings. The urban: F is provided with an arm h on which is so}?- portcd a counterweight F. The erbo'i' is also provided with :1 series of arms F", F, F mid id ph'ites 1 The knife of the G, G G and G are a series'of solenoids each provided with a slot G through which the arms F F, F and F extend.

1-1, H H and H are contact lotcs connectcd to Wires 5, 6, 7 and 8 'leaoing to the solenoid coils G, G G and G;

H, H H and la posing the contact plates H, H, H and H 1 is a gear connected to the arbor F by a,

ratchet and pawl l and 1 respectively.

1 IS a fun mounted upon a suitable shaft 1* and connectedby train of gear 1 to the gear I.

9 is the down wire, 10 the up wire and 11 the main Wire, leading to the usual cor op erating mechanism. v

12, 18, 1% andlo are plates connected to the up Wire 10.

16, .17, 18 and 19 are plates connected to the down wire 9.

20, 21, 22, and 2 3 are spaces intervening between the. plates 16 and 17, 18 and 19 end the plates 12, 13, 14 audio.

2 1, 25, E26 and 27 are brushes which travel along the plates 12. 13, and 14, and 15, and the plutes'lG, 17, 18 and 19 in unison with the rise and the full of the car.

2 1 26 and 2'? are wires leading from the brushes 24, 25, and 26 t0 the solenoid coils G, G G and G 2S, and 30 mid 31 are Wires leading from the Wires 6, i, and 8 to the floor push buttons E, E, E and E 32 iii-e Wires. leading from the contact of one floor to thecontact plates 1 of the floor below. The upper contact plate 3. connected by a wire 33 to the push button Ojfzfille lowermost floor. The wire 33 is connected by branch Wires 34, 35 and to the floor push button E. E and E of the intermediate flooi's. The lowermost contact plate 1 is connected. by the Wire 37 to one terminal of the knife switch F. 38 is a Wire leading from the other' terminal e H" 4 l 1., Hby branch Wires 39, 4-0, 41, 4-2;, 'The main Wire 11' leads through the car thrbug h the circuit breaking button B and The wire 11 is connected by Wires 11?. 11 11* and 11 tothc push button B, B B and B.

43., al 415, 46 are 'WllQS leading from tho push buttons li and B to the Wires "i-om thence by Wire/'11 to Wire 38.

B B snd B a of" the knife switch to the plntes ii si'ipplementel series are contact plates opi of push buttons I the wires 4:3, 4A, to.

- set of buttons will be located at the floors be understood that B, G and D.

Having described the principal parts in volv ed in my invention-I will briefly describe the operation of the same. It will before the circuit can be completed to operate the carall the gate contacts 1, 1' and 1 must be closed and also the circuit breaking button 13 switch F. It will be noticed from the drawing that the car is located at the top floor. If it is desired to bring the car to the bottom floor I press the push button .E corresponding to that floor. The circuit is then completed through the main wire 11, wire 11', wire 38, knife switch F, wire 37 to the lowermost contact plate 1 from whence it passes through all the gate'contact plates to the wire 33 leading to the The circuit extends from the push button E by wire 31 to the solenoid coil Gr connected by wire 27 to the brush 27, thence by the plate 19 to the down wire 9. Immediately the solenoid Gr is energized the core thereof rises connecting the contact plates H and H opening the knife switch by means of the rock shaft and raising the weight F By the rise of the core of the solenoid G the contacts H 'and H are connected together so that the circuit passes from the wire 11 through the contacts H and H through the solenoid coil to the brush 27 by the wire 27. By this means it will be seen that all the floor push buttons are short circuited rendering them inoperative and preventing the operation of the car by any other push button than the one pressed. It will also be seen that if any 0 the gates are open the circuit is broken between the plates 1 and the plates 1' and 1 thereby alopreventing the operation of the car; After the push button E has been pressed the car descends to the bottom floor the brush 27 moving down the strip or ing 23. When the brush 27 reaches the opening 23 the circuit of the solenoid G is broken and the weight F moves the knife switch slowly to the circuit closing position being retarded by the fan 1 The time it takes for the weight to descend is regulated by the fan I which is driven by the descending weight. The slow closing of the knife switch allows time for the user of the car to open the gate and enter the car. This mechanism is provided to allow for a' definite time to elapse between'the stopping of the car and its being started again by the operation of one of the push buttons on any Although I show the and knife plate 19 until it reaches the openof the floors. Once the door is opened the car of course cannot be controlled by any of the push buttons until the door is closed. The device does not operate toclose the door but only to allow a predetermined interval to elapse in which the circ1.\i1. is controlled by the knife switch F between the-lime that the car stops and the breaking of the circuit by the, opening of the door thereby rendering it impossible to interfere with the car by the pressing of any other push button while the door is, being opened. The user may then operate the car by means of push buttons 13, B B? and B, If the user desires to goto the top floor from any other floor he presses the push button B thereby completing the circuit from the main wire 11 through the push button 13, thence by wire 11 push button 13*, wire 46 to the solenoid G. From the solenoid G the circuit passes by the wire 24: to the brush 24 in contact with the strip 12 connected to the up wire 10. If it is desired to stop the car at any point intermcdiately between the floors the circuit may be' opened by pressing the circuit opening button 13 By pressing one of the supplemental but tons B", B or 13 a circuit is closed through the floor. selecting device so as to carry the car to the corresponding floor B, G or D. device may any desired floor. that such of the gates are provided with suitable counterweights so that they will automatically close when released so as to close the contacts 1, l

From this description it will be seen that I have devised a very simple device whereby the car may be controlled so as to bring it to any desired floor and at the same time prevent the car being aliected by more than be employed to carry the car to one push button and in which means is also provided whereby: it is impossible to operate the car should any of the gates be also I have provided a controlling device wherein the car mechanism is rendered inoperatiye by any push button for a short period to give sufficient time for opening the elevator gate. Of course it will be understood that this device may be attached to any car which has already been installed or which may be in stalled. l

What I claim as my invention is:

In a controlling device for electric elevators comprising a'push button locatedat each floor in proximity to the elevator shaft, an electric circuit comprising the main feed wire leading through the elevator shaft, the up and down wires, branch wires leading from the main feed wire through the push button to the up and down wires, a switch connection for cutting the push buttons outiof circuit, immediately after the open and in which At the floors B, C and D the same It will be understood car has :'started into motion, and comprising "mounted en the shaft, and designed to co a knife switch, a rock shaft on which the trol the gradual descent of the '\veigl'1t,,a.s knife of the switch is mounted, a counter and for the purpose specified.

balancing arm and weight connected to the THOMAS GABRIEL MASON. 5 rock shaft, an electric magnetic means for I Vitnesses:

raising the weight up on one of the push P. BOYD,

buttons being pressed, and a retarding fan H. PRESTON. 

